Highly ordered ultralong magnetic nanowires wrapped in stacked graphene layers

• Abdel-Aziz El Mel,
• Jean-Luc Duvail,
• Eric Gautron,
• Wei Xu,
• Chang-Hwan Choi,
• Benoit Angleraud,
• Agnès Granier and
• Pierre-Yves Tessier

Beilstein J. Nanotechnol. 2012, 3, 846–851, doi:10.3762/bjnano.3.95

• , typically 12) [25][28]. In order to prove that these nanowires have a core–shell structure with a nickel core and graphene stacking shell, they were placed on a carbon-coated copper grid and their surfaces were examined by TEM (Figure 3a). A typical high-resolution TEM micrograph of the surface of a

Magnetic-Fe/Fe₃O₄-nanoparticle-bound SN38 as carboxylesterase-cleavable prodrug for the delivery to tumors within monocytes/macrophages

• Hongwang Wang,
• Tej B. Shrestha,
• Matthew T. Basel,
• Raj K. Dani,
• Gwi-Moon Seo,
• Sivasai Balivada,
• Marla M. Pyle,
• Heidy Prock,
• Olga B. Koper,
• Prem S. Thapa,
• David Moore,
• Ping Li,
• Viktor Chikan,
• Deryl L. Troyer and
• Stefan H. Bossmann

Beilstein J. Nanotechnol. 2012, 3, 444–455, doi:10.3762/bjnano.3.51

• . The image reveals that the nanoparticles are roughly spherical, and a core/shell structure of the nanoparticles is clearly demonstrated. The average Fe(0) core diameter is 12 ± 0.5 nm and the thickness of the Fe3O4 shell is around 1.5 ± 0.5 nm. Exchange of the oleylamine/HDA ligands with the dopamine

Surface functionalization of aluminosilicate nanotubes with organic molecules

• Wei Ma,
• Weng On Yah,
• Hideyuki Otsuka and
• Atsushi Takahara

Beilstein J. Nanotechnol. 2012, 3, 82–100, doi:10.3762/bjnano.3.10

• through their Al–OH groups, and bundles of imogolite tubes still exist even in weak acidic water. When dodecylphosphate attaches to the surface of these bundles, a one-dimensional core–shell structure forms with imogolite bundles as the core. However, it is expected that only tightly packed bundles can be

• observed, indicating excellent dispersibility of PMMA grafted imogolite. The high-resolution phase image and the corresponding cross-sectional analysis in Figure 13b indicates that PMMA grafted imogolite renders a hard middle part and a soft edge. This further confirms the core–shell structure of PMMA-g

Highly efficient ZnO/Au Schottky barrier dye-sensitized solar cells: Role of gold nanoparticles on the charge-transfer process

• Tanujjal Bora,
• Htet H. Kyaw,
• Soumik Sarkar,
• Samir K. Pal and
• Joydeep Dutta

Beilstein J. Nanotechnol. 2011, 2, 681–690, doi:10.3762/bjnano.2.73

• electrolyte-exposed part of the metal oxide film by means of different additives in the electrolyte [10][11][12][13] or by using the core-shell structure of various metal oxides [14][15][16][17][18] have been reported. In this work we discuss the use of Au nanoparticles in a DSSC based on ZnO nanorods to

Ceria/silicon carbide core–shell materials prepared by miniemulsion technique

• Lars Borchardt,
• Martin Oschatz,
• Robert Frind,
• Emanuel Kockrick,
• Martin R. Lohe,
• Christoph P. Hauser,
• Clemens K. Weiss,
• Katharina Landfester,
• Bernd Büchner and
• Stefan Kaskel

Beilstein J. Nanotechnol. 2011, 2, 638–644, doi:10.3762/bjnano.2.67

• confirms the presence of cerium (1.5 wt % Ce). Furthermore the catalytic tests, shown in the next chapter, prove the presence of ceria. The core–shell structure could be seen more clearly when CeO2/Si(O)C particles that were synthesized by an impregnation approach were considered. From the scanning

• electron micrographs an average shell thickness of approximately 60 nm was obtained. Figure 4C illustrates the formation of these ceria shells on silicon carbide spheres. The cerium loading of these materials was increased up to 4 wt % Ce. Element mapping with EDX was used in order to verify the core–shell

• structure. To achieve this, a sphere with a partially fractured shell (Figure 5A) was analyzed with regard to the distribution of cerium, oxygen and silicon. Figure 5C proves that cerium is only present in the shell of this hybrid material. The shell also contains a higher amount of oxygen than the core